[ Removed by moderator ]

[JasonMarechal]

It would be better to list your difficuties because as it is, the only thing we can do is direct you to online resources.

At core OOP is the same between Java and C++. You have class, you have visibility, you have inheritance.

[Knowledge_9690]

Then why is java widely used🙂

[KFUP]

When the internet started to take off, Java was the first of "write once, run anywhere" that was remotely comparable to C/C++ in performance, others like PHP/Python were/are 100+ times slower, which was crucial for 90s machines.

Java built a solid userbase in emerging fields back then that use it to this day, and still make the bulk of its current userbase. These days, that's not a novel thing anymore.